Based on numerous reports in the Colombian press Minminas Federico Renjifo believes about 100,000 barrels of oil production is held up due to delays in the granting of environmental licenses. In some cases National Environmental Licensing Agency (ANLA) employees are making requirements beyond those established by law. Renjifo also claimed that the licenses are a bottleneck and there need to be manuals for the procedures to be followed by companies to get crude oil exploration and development licenses.